Home / 158,623.56-218,906.64-87,006.60

Finding the Fourth Proportional to 158,623.56, 218,906.64 and 87,006.60

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Solution

The fourth proportional to 158,623.56, 218,906.64 and 87,006.60 is: 120,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,623.56 : 218,906.64 = 87,006.60 : x
  2. Step 2: Convert to fraction form
    158,623.56/218,906.64 = 87,006.60/x
  3. Step 3: Cross multiply
    158,623.56x = 218,906.64 × 87,006.60
  4. Step 4: Simplify right side
    158,623.56x = 19,046,322,463.82
  5. Step 5: Solve for x
    x = 19,046,322,463.82/158,623.56
  6. Step 6: Final answer
    x = 120,072.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.